Title :
Maximum sum-rate linear beamforming strategies for downlink TDD MC-CDMA systems
Author :
Benvenuto, Nevio ; Bisaglia, Paola ; Boccardi, Federico
Author_Institution :
Dipartimento di Ingegneria dell´´Informazione, Padova Univ.
Abstract :
In this paper we derive an iterative joint preceding and power allocation method for downlink MC-CDMA systems with multiple transmit antennas at the base station, which solves the maximum sum-rate problem, i.e. maximizes the system throughput under a constraint on the overall transmit power. It is seen that the proposed joint preceding and power control solution gives a great performance advantage over suboptimal solutions based on the Moore-Penrose, when at the base station only one antenna is used
Keywords :
4G mobile communication; antenna arrays; code division multiple access; linear codes; power control; precoding; radio links; telecommunication congestion control; time division multiplexing; Moore-Penrose solutions; TDD MC-CDMA system downlink; iterative joint preceding; maximum sum-rate linear beamforming strategies; multiple transmit antennas; power allocation method; power control solution; Array signal processing; Base stations; Downlink; Iterative algorithms; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; OFDM; Signal to noise ratio; Transmitters; Downlink; MC-CDMA; multi-antenna; precoding;
Conference_Titel :
Wireless Communication Systems, 2005. 2nd International Symposium on
Conference_Location :
Siena
Print_ISBN :
0-7803-9206-X
DOI :
10.1109/ISWCS.2005.1547758
